RISSOIDA. 59 
1. Fluminicola nuttalliana. 
Paludina Nuttalliana, Lea, Trans. Amer, Philos. Soc. VI, 1839, Columbia 
River, Oregon. 
8 Oregon ; coll, Profs. W. Newcomb and E. C. Stearns. 
Genus GILLIA, Stimpson. 
Amer. J. Conch. I, 1865, and Smithsonian Mise. Coll. VII, 1865, type 
Melania altilis, Lea ; genus of subfam. Fluminicolina, fide Clessin, 1880. 
1. Gillia altilis. 
Melania altilis, Lea, Proc. Amer. Philos. Soc. II, 1841, §. Carolina. 
2 Potomac Ry.; coll. Prof. E. C. Stearns. 
2. Gillia integra. 
Melania integra, Say, N. H. Dissem. II, 1829, Ohio Rv.; Somatogyrus sp. 
fide Binney, 1865. 
4, United States; coll. Rev. E. R. Beadle. 
1 Florida; ex Mr. G. Schneider. 
Genus SOMATOGYRUS, Guill. 
P. Philad. Acad. 1863, type Amnicola depressa, Tryon ; genus of subfam. 
Fluminicoline, fide Clessin, 1880. 
1. Somatogyrus isogonus. 
Melania isogona, Say, N. H. Dissem. I, 1829, Louisville. 
6 Kentucky and N. York ; coll. Rev. E. R. Beadle and E. C. Stearns. 
Genus LITHOGLYPHUS, Ziegler, ms. 
OC. Pfeiffer, Deutsch. Moll. ITI, 1828, type L. naticoides, Fér. [ fide 
Stimpson, of Hartmann, 1821]; genus of subfam. Fluminicoline, fide 
Clessin, 1880. 
There is a Lith, liliputanus, Gredler, Jahrb. 1881, from 
China. 
1. Lithoglyphus prasinus. 
Lithoglyphus prasinus, Kokeil ms., F. J. Schmidt, Conch. Krain, 1847, and 
Kister, Conch.-Cab. IT, 1852, Carynthia. 
1 Klagenfurt [Carynthia] ; ex “ Linnawa.” 
